The POSIX function wcwidth() computes the width of a given wchar_t when printed on a terminal. For instance, wcwidth(L'A') returns 1, wcwidth(L'字') returns 2, etc. There is also a function wcswidth() which computes the width of an entire string—this is useful if combining accents are present.
Does a similar function exist in the Go standard library or the supplementary libraries? If not, is there an easy way to make something sufficiently similar?
Does a similar function exist in the Go standard library or the supplementary libraries?
I believe the most popular library for this is go-runewidth.
Example:
package main
import (
"github.com/mattn/go-runewidth"
)
func main() {
println(runewidth.StringWidth("A")) // prints 1
println(runewidth.StringWidth("字")) // prints 2
}